有限要素法と体積力法の併用による応力集中問題の解析

概要

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In this paper, a method for calculating the stress concentration factor or stress intensity factor is proposed and applied to the problem of the effect of gripped part in a plate specimen. This method is based on the combination of FEM and BFM (body force method). In this method first a given problem is analyzed by FEM and the surface stresses on an imaginary boundary including the source of stress concentration are calculated. Secondarily, BFM is applied to the partial body whose boundary is the imaginary boundary. In the analysis the boundary condition is given by the surface stresses on the imaginary boundary obtained by FEM. Because the accuracy of FEM on the imaginary boundary is comparatively high and the accuracy of BFM is extremely high, the accuracy of this method is high.
社団法人日本機械学会の論文
2001-11-25